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Fix clang analyzer warning about FilterGenerator

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Refactor FilterGenerator to remove ctor call to overridden method next()
in order to address clang static analyzer diagnostic:

catch2-src/single_include/catch2/catch.hpp:4166:42: note: Call to virtual method 'FilterGenerator::next' during construction bypasses virtual dispatch
                auto has_initial_value = next();
                                         ^~~~~~
This commit is contained in:
Xo Wang
2021-10-27 12:10:38 -07:00
committed by Martin Hořeňovský
parent f45dac8fc1
commit 33794a204c
6 changed files with 24 additions and 7 deletions
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7
include/internal/catch_generators_generic.hpp
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@@ -63,7 +63,7 @@ namespace Generators {
if (!m_predicate(m_generator.get())) {
// It might happen that there are no values that pass the
// filter. In that case we throw an exception.
auto has_initial_value = next();
auto has_initial_value = nextImpl();
if (!has_initial_value) {
Catch::throw_exception(GeneratorException("No valid value found in filtered generator"));
}
@@ -75,6 +75,11 @@ namespace Generators {
}
bool next() override {
return nextImpl();
}
private:
bool nextImpl() {
bool success = m_generator.next();
if (!success) {
return false;

1
projects/SelfTest/Baselines/compact.sw.approved.txt
View File

@@ -628,6 +628,7 @@ GeneratorsImpl.tests.cpp:<line number>: passed: gen.next() for: true
GeneratorsImpl.tests.cpp:<line number>: passed: gen.get() == 3 for: 3 == 3
GeneratorsImpl.tests.cpp:<line number>: passed: !(gen.next()) for: !false
GeneratorsImpl.tests.cpp:<line number>: passed: filter([] (int) { return false; }, value(1)), Catch::GeneratorException
GeneratorsImpl.tests.cpp:<line number>: passed: filter( []( int ) { return false; }, values( { 1, 2, 3 } ) ), Catch::GeneratorException
GeneratorsImpl.tests.cpp:<line number>: passed: gen.get() == 1 for: 1 == 1
GeneratorsImpl.tests.cpp:<line number>: passed: gen.next() for: true
GeneratorsImpl.tests.cpp:<line number>: passed: gen.get() == 2 for: 2 == 2

2
projects/SelfTest/Baselines/console.std.approved.txt
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@@ -1421,5 +1421,5 @@ due to unexpected exception with message:
===============================================================================
test cases: 323 | 248 passed | 70 failed | 5 failed as expected
assertions: 1763 | 1607 passed | 131 failed | 25 failed as expected
assertions: 1764 | 1608 passed | 131 failed | 25 failed as expected

5
projects/SelfTest/Baselines/console.sw.approved.txt
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@@ -4968,6 +4968,9 @@ with expansion:
GeneratorsImpl.tests.cpp:<line number>: PASSED:
REQUIRE_THROWS_AS( filter([] (int) { return false; }, value(1)), Catch::GeneratorException )
GeneratorsImpl.tests.cpp:<line number>: PASSED:
REQUIRE_THROWS_AS( filter( []( int ) { return false; }, values( { 1, 2, 3 } ) ), Catch::GeneratorException )
-------------------------------------------------------------------------------
Generators internals
Take generator
@@ -14179,5 +14182,5 @@ Misc.tests.cpp:<line number>: PASSED:
===============================================================================
test cases: 323 | 232 passed | 86 failed | 5 failed as expected
assertions: 1780 | 1607 passed | 148 failed | 25 failed as expected
assertions: 1781 | 1608 passed | 148 failed | 25 failed as expected

2
projects/SelfTest/Baselines/junit.sw.approved.txt
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@@ -1,7 +1,7 @@
<?xml version="1.0" encoding="UTF-8"?>
<testsuitesloose text artifact
>
<testsuite name="<exe-name>" errors="17" failures="132" tests="1781" hostname="tbd" time="{duration}" timestamp="{iso8601-timestamp}">
<testsuite name="<exe-name>" errors="17" failures="132" tests="1782" hostname="tbd" time="{duration}" timestamp="{iso8601-timestamp}">
<properties>
<property name="filters" value="~[!nonportable]~[!benchmark]~[approvals]"/>
<property name="random-seed" value="1"/>

14
projects/SelfTest/Baselines/xml.sw.approved.txt
View File

@@ -5720,7 +5720,15 @@ Nor would this
filter([] (int) { return false; }, value(1)), Catch::GeneratorException
</Expanded>
</Expression>
<OverallResults successes="5" failures="0" expectedFailures="0"/>
<Expression success="true" type="REQUIRE_THROWS_AS" filename="projects/<exe-name>/IntrospectiveTests/GeneratorsImpl.tests.cpp" >
<Original>
filter( []( int ) { return false; }, values( { 1, 2, 3 } ) ), Catch::GeneratorException
</Original>
<Expanded>
filter( []( int ) { return false; }, values( { 1, 2, 3 } ) ), Catch::GeneratorException
</Expanded>
</Expression>
<OverallResults successes="6" failures="0" expectedFailures="0"/>
</Section>
<Section name="Take generator" filename="projects/<exe-name>/IntrospectiveTests/GeneratorsImpl.tests.cpp" >
<Section name="Take less" filename="projects/<exe-name>/IntrospectiveTests/GeneratorsImpl.tests.cpp" >
@@ -16759,9 +16767,9 @@ loose text artifact
</Section>
<OverallResult success="true"/>
</TestCase>
<OverallResults successes="1607" failures="149" expectedFailures="25"/>
<OverallResults successes="1608" failures="149" expectedFailures="25"/>
<OverallResultsCases successes="232" failures="86" expectedFailures="5"/>
</Group>
<OverallResults successes="1607" failures="148" expectedFailures="25"/>
<OverallResults successes="1608" failures="148" expectedFailures="25"/>
<OverallResultsCases successes="232" failures="86" expectedFailures="5"/>
</Catch>